Improvement in wheels for vehicles



F. W VR. EMERY Wheel for Vehicles.

No.l59.25l. Pamnr@dFeb.2,1a75

UNITED STATES PATENT OFFICE.

FRANCIS W. R. EMERY, OF TAUNTON, MASSACHUSETTS, ASSIGNOR OF ONE- ]EIAIIF HIS RIGHT TO DANIEL M. FERREN, OF SAME PLACE.

IMPROVEMENT IN WHEELS FOR VEHICLES.

Specification forming part of Letters Patent No. 159,251 dated February 2, 1875; application filed December 28, 1874.

To all whom it may concern:

Be it known that l, FRANCIS W. It. EMERY, of Taunton, in the county of Bristol, State of Massachusetts, have invented a certain new and useful Improvement in Hubs for Carriage- Wheels, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference being had to the accompanying drawing, forming a part of this specication, in which- Figure 1 is a sectional view; Fig. 2, aA vertical section taken on the line x x, Fi g. l, and Fig. 3 a view of a spokeholder.

Like letters ot' reference indicate corresponding parts in the different figures of the drawing. Y My invention relates more especially to metallic hubs, and consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which many advantages are attained over the hubs of this character in ordinary use.

It is well known that in the use of common metallic carriage-hubs it is very difficult to replace the spokes when broken or to secure them when loose, as well as to compensate for the expansion and contraction of the wheeltire, or the shrinkage of the fellies.

My improvement is designed to obviate these difficulties and objections, and to that end I construct the hub in sections, and combine and arrange the various parts in a manner which I will now proceed to describe.

In the drawing, J represents the main hub, or portion designed to be nearest the carriage, and which has its greatest diameter on the line .fr a2, fromwhich to its outer end is reduced, forming the shaft I. This shaft is ntegral with the main hub, and is exteriorly threaded to receive the nuts B G, concave disk or shellA, and cone F, which are screwed onto it when in use, being provided with corresponding screw threads therefor. The shoulder formed at the line a.' x is sunk or turned out to leave the annular lip or flange a a, and in the bottom or face of the shoulder are four sockets or indentations, k. Disposed around the shaft I are a series of quadrantal spoke-holders, C, of a form best seen in Fig. 3. These holders are concaved at d, to correspond with the cone F, their inner ends being provided With studs or projections E, designed to fit into the indentations K, and their peripheries with the sockets or spoke-holes D.

From the foregoing, the nature and operation of my invention will be readily obvious to all conversant with such matters.

In constructing a Wheel with my improved hub, the spokes are rst set in the sockets of the spoke-holders, which are then arranged around the shaft I, the studs E being inserted in the indentations K. The cone F i's then screwed onto the shaft, forcing the spokeholders apart, and at the same time firmly against the shoulder of the main hub, Within the'iange a a, theindentations K being slightly larger than the studs E, to permit the spokeholders to slide outwardly from the axis of the hub as the cone advances on the shaft I. The setnut G is then screwed rmly against the cone to secure it, after which the disk A is turned on, covering the nut and cone, and is fastened by the nut B. The nuts may, however, be omitted,if preferred. The inner end of the disk is designed to project over the outer end of the spoke-holders nearly or quite to the spoke-sockets D, the iiange or lip a, a covering the inner ends to about the same eX- tent.

It will be seen that one or more of the segmental spoke-holders may be readily removed to repair the wheel, and that by means ofthe cone F the hub may be expanded to compensate for either shrinkage of the fellies or expansion of the tire.

Having thus explained my invention, what I claim is- The carriage-hub, consisting of the main portion J, cone F, and disk A, in combination with the quadrantal spoke-holders C, provided with the sockets D and studs E, to operate substantially as and for the purpose set forth.

EEANcIs vv. n. EMEEY. LL. s] 

